alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE IP Grabber CnC Activity"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/datarecord/"; endswith; http.request_body; content:"username="; startswith; content:"&content=IP%3a+"; distance:0; fast_pattern; content:"%0a"; endswith; reference:md5,635b08c141465abf86eaec88391b5ee6; classtype:command-and-control; sid:2030599; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_07_27, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_14;)